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Abstract

It is important that a self-service point-of-sale (POS) terminal provide reasonable guidance to direct the terminal user through functional procedures to complete a transaction. This disclosure describes a simple method using two guidance indicators controlled by simple logic to direct the user to perform the required tasks associated with reading data from a magnetically striped card, followed by some defined key entry sequence.

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United States

Language

English (United States)

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Guidance Control on a Nonprogrammable POS Device

It is important that a self-service point-of-sale (POS) terminal provide
reasonable guidance to direct the terminal user through functional procedures to
complete a transaction. This disclosure describes a simple method using two
guidance indicators controlled by simple logic to direct the user to perform the
required tasks associated with reading data from a magnetically striped card,
followed by some defined key entry sequence.

The first step of a self-service transaction executed at terminal 10 is indicated
by the legend associated with illuminated indicator 14, which instructs the user to
pass a magnetic stripe identification card through a stripe reader slot 12, for
example, in a right to left direction. Indicator 14 is illuminated by latch 16 which is
set by OR gate 18 when power is turned on. Depression of the clear key, for
example, after a mistake has been made, or receipt of an Unlock Keyboard
System Command from the computer, indicating that the computer is ready to
accept the next transaction, also sets latch 16.

Latch 16 is reset and latch 20 is set by Magnetic Stripe Read Complete,
indicating correct reading without error. Latch 20 illuminates indicator lamp 22,
directing the user's attention to the keyboard and the legend associated with
indicator lamp 22. After the user has completed entry of the information required
for the transaction, the send key will be depressed, causing latch 20 to reset and
...